Identification and Molecular Characterisation of Bovine Parainfluenza Virus-3 and Bovine Respiratory Syncytial Virus - First Report from Turkey

Timurkan, Mehmet Ozkan; Aydin, Hakan; Sait, Ahmet

Aetiology in respiratory infection is quite important (14, 38) . A fast and reliable method must be selected to identify the underlying agent. Genotyping studies may provide information about strains that cause serious clinical onsets related to vaccine strains and preventive status. Phylogenetic analysis of the BRSV strain was performed (Fig. 2) . Analysis of the partial sequence of BRSV shows that our strains were more closely related to American and Brazilian (USA: KU159366; and Brazil: FJ543092) strains instead of European ones. Although the strains identified in the study are expected to be close to the European strains (because of the geographical location of Turkey), the increase in meat and live animal imports into our country over the last 5 years may be a factor in this situation, because our country imports meat from USA, Canada, Brazil, and Uruguay. Many infectious diseases may be spread among cities, countries, and continents as a result of animal or animal product transportation (12, 16) . In our study, BRSV sequences showed high genetic similarity with the American and Brazilian strains. This genetic similarity among BRSV strains suggests that it could have come from Brazil or America, as a result of live animal exports.